I read here that if the plug for the earphones in the MP4 is loose, it has to be soldered, but i don't know where or how? I think there are some members from the Phils here? Please tell me where to go to have this fixed. Thanks

Thanks for the reply. Please send me what a soldering tool looks like? No, I don't know anybody who can fix it. If I have a picture, I can show it. There are many cellphone repair stores here, but I'm afraid if i say solder, they might not get it. I don't know what they call solder in the native tongue. If I can buy one, maybe I can try and fix it Thanks so much.

If you say "solder" and they do not understand then go some place else. You would not take your computer to be fixed at a place where you had to show them a picture of a computer would you?
If you are going to do it yourself, get some thin pieces of copper wire (like 22 gage) to practice soldering with. Soldering small parts on a small board like inside a mp4 player is hard to do. If you do not learn how to solder well before you try to fix your player you will probably burn it up! Read http://www.instructables.com/id/E30LR180T4EWP872BS/ first. DO NOT try to fix it using step 7!